Cycle Repairing and Adjusting
With a Chapter on building a Bicycle from a Set of Parts

30 CYCLE REPAIRING surfaces should not be oiled ; but, as a matter of fact, this part requires frequent lubricating. Were ordinary oil used for the purpose, it would run out of the hub, owing to the heating of the brake. To overcome this difficulty a proper lubricant must be used. This is the motor cylinder oil mentioned above, or a non-fluid oil melting at 356° F., made expressly for lubricating these hubs ; it can be bought of most cycle dealers. To lubricate, take down the hub, remove the brake clutch from the brake, and pack the interior of the brake with lubricant, applying a little to all bearings of the hub. Then fit together again, and if this is properly done, the hub will not give trouble for twelve months’ ordinary running. Mr. J. Veitch Wilson, the well-known authority on lubricants, dislikes both sperm oil and stauffer grease for coaster hubs, and recommends some such lubricant as Price’s “ cycle axle oil ‘ B.’ ” Keeping Dust from Cups of Bottom Brackets.— Cycling recommends the following method, which renders the cups almost oil-retaining in their character : Take a piece of velveteen, and cut a hole in it sufficiently large to pass over the axle, with an outside diameter equal to that of the cup. If one or more pieces are placed on the axle before the cranks are cottered up, the surplus oil will be retained by this washer, and at the same time dust cannot get in. If the pieces are too thick, possibly a slight amount of friction may be caused, but it will speedily disappear with wear. The Frame.—A thorough examination of the frame should be made, especially at the joints where tubes are brazed into the lugs, for broken joints, cracked tubes, etc.